A few weeks ago while I was typing up my on-site notes at work, on my T-Mobile Wing the device threw me a tilde (~). This confused me because this device doesn't have a tilde key and I wasn't working in the symbol keypad. About two weeks later I was able to get the device to type another symbol that isn't shown on the keyboard, thankfully I was texting and not at work, so after a few minutes of experimenting I was able to chart all of the alternate keys that are available on the Wing.
So what is the T-Mobile Wing? The Wing is a Windows Mobile 6 Professional smartphone that has a sliding keyboard, WIFI, bluetooth, and Microsoft Voice command built in. Voice command lets you perform certain tasks by voice without a training session like most phones with voice control require. Price was $299 at launch.
Chart of alt keys and instructions after the jump.
Pressing the alt key on the left of the chart (shown in blue on the keypad) while still holding alt and then pressing the space bar will give you the symbol on the right of the chart, pressing space multiple times while still holding alt will give you the other symbols on the chart. The number keys and the other keys not listed don't respond to this function.
Blue Key Result
Obviously a few of these keys just duplicate existing functionality, but some of them are very useful and if you use some of these symbols regularly they can save you loads of time using alternate methods to get these symbols.
I am a manual reader and didn't see this information listed in the manual. (I just double checked to be sure). This information is not in the manual.
Pressing alt tab brings up a useful symbol panel. This symbol panel is similar to the charmap function of a windows computer, and contains several pages of symbols that you can insert into your text.
Thanks to blackout203 @ XDA Developers, while they were trying this out they found out about the multiple keypresses.